Tension.



PATENTED MAR. 31, 1903.

W. H. HASBMEYER. TENSION.

APPLICATION FILED JAN. 30, 1902.

UNiTED STATES .ATENT OFFICE.,

WILLIAM H. HASEMEYER, OF ESSEX, ILLINOIS.

TENSION.

SPECIFICATION forming part o f Letters Patent No. 724,285, dated March31,1903. Application filed January-30,1902. Serial No. 91,935. (Nomodel.)

` ing at Essex, in the county of Kankakee and State of Illinois, haveinvented a new Tension, of which the following is a specification.

This invention relates to a tension mechanism possessing peculiarcharacteristics and designed most especially for harvester-binders,although capable of use wherever it is required to subject a cord,ligament, strand, or the like to a uniform tension for any desiredpurpose.

For a full description of the invention and the merits thereof and alsoVto acquire a knowledge of the details of construction of the means foreifecting the result reference is to be had to the following descriptionand drawings hereto attached.

While the essential and characteristic features of the invention aresusceptible of modiiications, still the preferred embodiment of theinvention is illustrated in the accompanying drawings, in which- Figurelis a perspective view of a tension device embodying the invention. Fig.2 is a detail section of the tension-creating mechanism. Fig. 3 is adetail section of the parts shown in Fig. 2, taken on a plane at rightangles thereto. Fig. 4 is a perspective view of the iixed or bracketmember of the tensionbox. Fig. 5 is a perspective view of the movablemember of said tension-box.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the drawings by the samereference characters.

The operating parts are attached to a suitable support 1, which may be aconvenient portion of the harvester-binder framework or other mechanismto which the invention is applied. The twine, oord, ligament, or thelike (indicated at 2) is formed into a ball or wound upon a spool andplaced upon a holder 3, which may be of any nature or construction,depending upon the type of machine to `which the invention is applied. Aseries of guide-eyes 4 receive the twine, ligament, or strand 2preliminary to its passage through the tension-creating mechanism.

The tension-creating mechanism comprises a number of cooperating parts,including a box, a spool, and a tension-spring. The box comprises afixed or bracket member 5, which is firmly attached to the support l,and a spring-actuated movable member 6. The member 5 is approximatelyofUform and is attached by one of its side pieces to the support 1 and isarranged with the open end uppermost. The member 6 is likewise of U formand is placed in an inverse position with reference to the member -thatis, with its l open end down and its side pieces closing the open sidesof the member 5. The upper edge portion of the side pieces of the member5 are cut away, as shown at 7, to receive guidelugs 8, extended from theupper corners of the member 6. The tension-spool 9 is located in the boxformed by the inclosing sides of the members 5 and 6 and is mounted upona bolt, rod, or pin 10, passed through coincident openings in the endsof said members 5 and 6 and receiving a tension-spring 11, which exertsa pressure upon the member 6, confining the spool 9 with a greater orless pressure, according to the required degree of tension. Anadjustingnut 12 admits of regulating the tension of the spring 11 andthe consequent pressure exerted against the ends of the spool to resistits rotation when the twine, strand, or ligament is drawn upon. tion ofthe tension-spool is tapering and is a1'- ranged with the larger portionuppermost. An opening 13 is' formed near the upper end of a side pieceof the member 6 for the passage of the twine or strand 2, and a slot 14is provided in the opposite side portion of Ysaid member for the exit ofthe said twine or strand from the box. The opening 13 is located nearthe rear side of the box, whereas the slot 14 is arranged near the frontside of said box to conform approximately to the end portions of thetwine or strand 2, extended in opposite directions from opposite sidesof the spool. The twine or strand 2 is passed around the taperingportion of the spool any desired number of times in order to insurerotation ofsaid spool and preventslipping of the twine or strandthereon. To prevent the twine or strand 2 from creeping downward uponthe spool, the opening 13 is located in the side of the member 6 nearthe upper end of said spool.

The tension upon the twine orstrand 2 is regulated by causing the spring1l to exert a The body por- IOO greater or less downward pressure uponthe' member 6, thereby gripping the spool 1I with a greater or lessdegree of force. Access may be quickly had to the spool 9 for anypurpose by removing the pin or bolt 10 and lifting the member 6 from themember 5.

Having thus described the invention, what is claimed as new is l. In atension device, inversely-disposed complementary members ofapproximately U form, a spool inclosed by said members, and atension-spring for pressing the members against the ends of the spoolwith a greater or less degree of pressure, substantially as specified.

2. In a tension device, inversely-disposed complementary members ofapproximately U form, one of the members having an opening near one endfor the entrance of the twine or strand to be placed under tension andthe side of said member having a slot for the exit of the said twine orstrand, a spool inclosed by said members, and means for pressing themembers together so as to grip the spool with a greater or less degreeof pressure, substantially as set forth.

3. In a tension device, inversely-disposed U -shaped members, one ofsaid members having the upper edge portions of its side pieces cut away,guide-lugs extended from the upper corners of the other member to entersaid cut-away edge portions of the first-mentioned member, and a spoolgripped between the said members, substantially as set forth.

4. In atension device,comp1ementary members, one of said members havingan opening near the end of a side piece and a slotl in the opposite sidepiece, a tapering spool arranged between said members with its largerend about in the plane of the opening inthe side of the member providedwith the aforementioned opening and slot, and means for causing themembers to grip the said spool with a greater or less pressure,substantially as set

